上端的用法和樣例：
例句
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圓形山谷一種出現在山脈谷地上端的陡峭山谷，常有小湖泊
A steep hollow, often containing a small lake, occurring at the upper end of a mountain valley. -
活字上端帶有突出的字母或字的一小塊木頭或金屬，塗上墨並壓在紙上后就會留下印記
A small block of metal or wood bearing a raised letter or character on the upper end that leaves a printed impression when inked and pressed on paper. -
把你的名字填寫在每頁上端的括弧內。
Put your name in brackets at the top of each page.
